### QPx_SetImporterOffsetAndLimit

QPx_SetImporterOffsetAndLimit(importerRef; dataOffset; dataLimit):error
| importerRef | Longint | Reference to a graphics importer instance
| dataOffset | Longint | Image data offset
| dataLimit | Longint | Image data limit
| error | Longint | Error result

The image source is typically an entire file or BLOB. In some cases the image source is part of a larger container (file or BLOB). In such cases it is necessary to indicate where the data begins and where it ends.

This command lets you specify the starting offset and limit. All requests to read data are then relative to the specified offset, and are pinned to the specified limit and container size.

Related commands

QPx_GetImporterOffsetAndLimit | Returns start and end of data within a container

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